391591984

素因数分解:

$2^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{1609}}^1$

素因数の和:1718

約数の個数: 80

約数和(自身を含む): 905567040

約数和(自身を除く): 513975056

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 53, 56, 82, 106, 112, 164, 212, 287, 328, 371, 424, 574, 656, 742, 848, 1148, 1484, 1609, 2173, 2296, 2968, 3218, 4346, 4592, 5936, 6436, 8692, 11263, 12872, 15211, 17384, 22526, 25744, 30422, 34768, 45052, 60844, 65969, 85277, 90104, 121688, 131938, 170554, 180208, 243376, 263876, 341108, 461783, 527752, 596939, 682216, 923566, 1055504, 1193878, 1364432, 1847132, 2387756, 3496357, 3694264, 4775512, 6992714, 7388528, 9551024, 13985428, 24474499, 27970856, 48948998, 55941712, 97897996, 195795992, 391591984]

約数ペア:

[(1, 391591984), (2, 195795992), (4, 97897996), (7, 55941712), (8, 48948998), (14, 27970856), (16, 24474499), (28, 13985428), (41, 9551024), (53, 7388528), (56, 6992714), (82, 4775512), (106, 3694264), (112, 3496357), (164, 2387756), (212, 1847132), (287, 1364432), (328, 1193878), (371, 1055504), (424, 923566), (574, 682216), (656, 596939), (742, 527752), (848, 461783), (1148, 341108), (1484, 263876), (1609, 243376), (2173, 180208), (2296, 170554), (2968, 131938), (3218, 121688), (4346, 90104), (4592, 85277), (5936, 65969), (6436, 60844), (8692, 45052), (11263, 34768), (12872, 30422), (15211, 25744), (17384, 22526)]